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waited Csi-taire anni (titille.

'as to extend parallel thereto, and pass -t-hrough an Vofthe tixedsleeve C, to prevent the Siphon from turn- .arresting a further upwardmovement ofthe closing- JABEZ A. BosTWrcK Letters .Patent N 99,526,

dated February 8, 1870.

IMPROVEMENT IN SIPHQNS The Schedule'referred t`in these Letters Patentand making part of the same.

I, JABEZ A. BosTWICK, of the city, county, and State of -New York, haveinvented certain Improvements in Siphons, for discharging .fluids fromtanks and other receptacles or vessels, of which the following is aspecification. i

The nature of in y invention consists- First, in attaching a siphon to atank or fluid-receptacle o t' any descriptiomin such mannerthatit mayslide or move and be adjusted vertically; and

Second, in passing a cord or chain through the siphon, one end of thechain being attached to a valve made to tit over and close one end ofthe siphon, and the other fastened to aweight or to a. point outside, orindependent of the tube, so that anelevati'on ot' the siphen, willtighten the chain, and thus draiv up and close` the valve. j

Figure 1 is a central vertical section of my improved Siphon attached toa tank, and elevated, so thatits outer end is closed by the valve;

Figure 2, an elevation, illustrating the Siphon dropped, so as to loosenthe valve and open the tube, to permit its operation in dischargingtheHuid contained in the tank; i

vFigure 3 a transverse section in line x x ot' tig. 2; andV Figure 4, anelevation illustrating a modification` in the manner of securing the`inner end ofthe chain,`to permit an adjustment thereof.

A, in the accompanying drawings', represents a tank, or other vessel orreceptacle to contain fluids and B, a VSiphon-tube of ordinaryconstruction.

The inner shorter arm .71, of' the siphon, passes. through a sleeve orcollar, Q,secured to the side of the tank, so that it 4'may freely slidetherein vertically.

A rod, l), is secured nponthe side ofthe arm 7:-, so

aperture in a flange, c, formed around the upperend ing in its sleeve,Without restricting its vertical movements.

y l" is a cord or chain passed through the siphon-4 tube.` i

The inner end of the chain is fastened by a ring or hook to the bottomofthe tank A.

To its outer end, projecting from the longer arm of the tube, a valve,G, is attached.

This valve G is cup-shz'tpetb and properly packed, so that when drawrrupbythe cord closely against the end ofthe tube, as shown in tig. 2, itwill form a watertight jointth rewith. l y

Il`he. length ofthe chain is so proportioned with reference to that ofthe siphon, and in the depthof the tank or vessel A, as thatwhen thersi'ph'on is drawn up to 4a given height above the bot-tom of the tank,(to be determined in each case'by therequirements'of the operator,) thechain will be drawn perfectly tight,

valve G against the outer end thereof.

Instead of fastening the inner end of the chain toV the bottom of thetank by a ring or hook, as illus- "trated in figs, l and 2, Icontemplate securing it to a hallor Weight independent of the tank, alsopassing it through a-ring or a pulley secured to the bottom of the tankor other vessel, and then attaclxing it to a vertical slide-rod, H,arranged upon the side of' the vessel, as illustrated in g. 4.

This rod H is 4provided with arack and pinion, ratchet, or other form ofcatch, to secure it firmly in any desired position.

.By a movement of the rod H, the length of the chain F, and theconsequent height to which the si- `phon B may be elevated, is readilyadj ust-ed.

rThe siphon is held in any position to which it may be elevated, bymeans of the pressure of a spring, K, secured so to bear againstit, asfully illustrated in tig. 3.

A knob, S, is secured upon the bend of the siphon,

to facilitate the movement thereof.

A transverse bar may be inserted in the out-er end of thefsiphon, toguide and steady the movements :of the valve. or valve-stein in closingt-he same.

Instead of using a rod, D, passing through the flange c of the collar E,.to prevent a rotation of the siphon, the side of the tube maybegrooved, to receive a projection from thesleeve; or a pin, project-ingfrom the tube., may be used to project into a groove or slot in thesleeve, and I contemplate such well-known equivalent' devices for thispurpose.

Although I ordinarily prefer to place the valve. (l.

at the onter'end of the sipbon, and to x the opposite. end .ot' thechain, operating the-san1e,\vithi n the tank containing the. fluid to bedischarged, I contemplate, in my invention, .reversing this order, byplacing the valve atthe inner end ofthe siphon, and securing theopposite end ofthe chain attached thereto to a point outside of thetank.

l claim, as my invention- 1. The combination ofa suitable valve with theend oi a siphon-tube, and 'with a chain or cord passing through thetube, and secured to aneight, or to any suitable point of attachmentindependentthereof, substantially as herein described.

2. The combination ot' a siphon-tube, B, with a sleeve or collar, O,secured to a tank or other vessel, A, to permit a free vert-icalmovement oftl1etube,and with a side-rod passingl through a flange onsaid sleeve, to prevent a rotation thereof, all substantiallyas hereinset forth.

3. 'lhe combination of aspring, K, with a sliding Siphon-tube, B,arranged and operating substantially in the manner and foi-the purposeherein `set forth.

J. 'A. BOSTWIGK.

lVitnesses:

W H. TlnroRD, W. A. DUDLEY, Jr.

